WM aerobatics YAK55M SEPP User manual

WM SEPP series electric model airplane
Instruction manual
WM aerobatics
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SAFETY PRECOUTIONS: This model is NOT a toy First time builders and the children under twelve shoul
seek assistance from people with model building experience to ensure the airplane is assembled correct
Serious injury may result from the misuse of this product. You are responsible for this model's assembly an
safe operation. Always stay safe during your operation.

Thank you for choosing this WM aerobatics product. Please read through the instructions thoroughly
before assembling this model. (With our products being improved, the images in this instruction manual may
not reflect the actual model that you are assembling)
Packing list: Your package should include the following: fuselage, wing panel, aileron, stabilizer,
elevator, vertical fin, rudder, landing gear parts, surface angles, and linkages (as picture 1 shown). Please
check your box, if any parts lacking, please contact the distributor.
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Section A. Install the stabilizer
Install the stabilizer inside the fuselage. Align the stabilizer carefully ensuring the stabilizer is centered
in the fuselage and 90 degrees to the fuselage sides. Then glue the stabilizer into place with 502 instant
adhesive. As pic.2, 3, 4 shown.
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Section B. Install the elevator, rudder and aileron
Install the vertical fin into the slot of the fuselage. Insure the vertical fin is centered to the center of the
fuselage and square to the fuselage sides and stabilizer. Then glue the vertical fin into place with 502 instant
adhesive as pic.5 shown. Split the place as pic.6 shown.
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Install the elevator into the fuselage, insert the hinges into the stabilizer, then glue the place with 502
instant adhesive (pic.7). Insure the elevator can spin to certain angle that needed. (pic.8). Locate the
rudder's hinges in the same fashion as the elevator, fix the rudder to the vertical fin (pic.9).
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Repeat for the aileron (pic.1 0).
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Section C. Install the landing gear
Landing gear parts are shown as pic.11. Locate the gears on the metal wire (pic.12).
Install the landing gear into the fuselage (pic.13), insert the wooden chip into the slot (pic.14), then glue
the place with 502 instant adhesive.
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Section D. Install the servos, angles and the linkage pushrods
Install the servo into the hole of the piece of wood, fix them with cap screws.(pic.15)
Glue the angle in the place of each surface (pic.16).
Put the shrinkable tube on the linkage pushrods, adjust the linkage pushrod to appropriate length, and
heat the tube to join the two linkages (pic.17).
Mount the pushrods and the linkages with 502 instant adhesive. (pic.18). Joint the servo arm, linkage
pushrod and surface angle as pic.19 shown.
Linkage pushrods of aileron, elevator and rudder are all assembled in the same way.
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Section E. Install the electronic equipment
Fix the motor into the firewall with cap screws (pic.20). Install the propeller (pic.21).
Connect the ESC to motor, fix the ESC inside the fuselage with masking adhesive tape (pic.22).
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Insert the electric wires of ESe that will be connected to battery into the battery bin, and then paste the
masking adhesive tape in the battery bin. (pic.23)
Connect servo wires to the receiver, and fix the receiver in the fuselage with masking adhesive tape
(pic.24).
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Section F: Install the main wing
The main wing is detaohable.
Insert the wing tube into the fuselage, then insert the wing into the fuselage (pic.25)
After finished both sides, connect the hooks of the wing with rubber band, put the wing and the fuselage
together into a whole (pic.26).
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Assembling is over
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Section G: SPECIFICATION
CODE WM aerobatics ITEM YAK55M SEPP
WING SPAN 1256mm WEIGHT 920g (without battery)
TOTAL LENGTH 1248mm MOTOR 3542; 2815;
900-950KV
WING AREA 37.2dm2ESC 40A
SERVO 1.5-2kg/cm; 0.1-0.2S(4pcs) BATTERY 3S 11.1V 1800-2200MAH
PROPELLER 13*6; / 13*6.5E CENTER OF GRAVITY 115-125MM from L.E. at
root
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CONTROL THROWS
AILERON 35-40 degree
ELEVATOR 40-45 degree
RUDDER 40-45 degree
CAUTION:
1. NEVER flight on extremely bad weather, such as fierce wind, pool visibility, rain etc.
2. NEVER flight inthe crowd, near the building or high voltage cable.
3. MAKE SURE the radio and servos work well, the battery is full charged before flight.
4. Freshman should flight with the guidance of experienced people.
5. NEVER flight the airplane to your back round. Never expose others to real danger.
6. KEEP IN MIND that you are fully responsible for the flight safety. Enjoy your safe flight
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